165 Loreley

Main-belt asteroid October 2019 yes #D6D6D6 165 Loreley 165 Loreley.png Lightcurve-base 3D-model of Loreley on the top with an image of the asteroid on the bottom. C. H. F. Peters 9 August 1876 (165) Loreley A876 PA; 1948 QS;1959 PB; 1960 WG ' l oʊr ə l aɪLorelei main belt 31 July 2016 (JD 2457600.5) 3.1251 AU Gm on 2.8599 AU Gm on 3.3904 AU Gm on on 0.084887 2017.9 days years flip 11.224° 302.53° 347.29° 125.88° 0.17840 ms / day 139.51 yr (50957 d) 0 1.84454 AU Gm on 1.81383 AU Gm on 3.180 180.083 2.064 km 4.69 0.40 18 kgCalculated from its standard gravitational parameter GM = 0.313 0.027 km3/s2. 1.73 0.21 g/cm3Assuming a diameter of 173 ± 5 km. 7.226 h d on on7.22667 h 7.65, 7.76 0.0642 0.004 165 Loreley is a large main-belt asteroid that was discovered by C. H. F. Peters on August 9, 1876, in Clinton, New York and named after the Lorelei, a figure in German folklore. It is orbiting the Sun at a distance of 3.125 AU and a low eccentricity of 0.08. The orbital plane is inclined at an angle of 11.2° to the plane of the ecliptic. In the late 1990s, a network of astronomers worldwide gathered light curve data that was ultimately used to derive the spin states and shape models of 10 new asteroids, including (165) Loreley. The light curve of this asteroid varies by no more than 0.2 in magnitude, while the derived shape model shows multiple flat spots on the surface. The asteroid has an oblate shape with a size ratio of 1.26 ± 0.08 between the major and minor axes, as determined from the W. M. Keck Observatory. Between 2003 and 2021, 165 Loreley has been observed to occult thirteen stars. Notes References F. Marchis M. Kaasalainen E. F. Y. Hom J. Berthier J. Enriquez D. Hestroffer D. Le Mignant I. de Pater 1 Shape, size and multiplicity of main-belt asteroids. I. Keck Adaptive Optics survey Icarus 185 1 39–63 November 2006 2006Icar..185...39M 10.1016/j.icarus.2006.06.001 . 19081813 2600456 J. Ďurech M. Kaasalainen A. Marciniak Allen W. H. Behrend R. 1 Physical models of ten asteroids from an observers Astronomy and Astrophysics 465 1 331–337 April 2007 10.1051/0004-6361:20066347 2007A&A...465..331D . free J. Durech M. Kaasalainen A. Marciniak W. H. Allen 1 Asteroid brightness and geometry VizieR On-line Data Catalog: J/A+A/465/331 November 2006 2006yCat..34650331D . Warner Brian D. Initial Results of a Dedicated H-G Project The Minor Planet Bulletin 34 113–119 December 2007 2007MPBu...34..113W . Donald K. Yeomans 165 Loreley JPL Small-Body Database Browser NASA Jet Propulsion Laboratory https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=165 12 May 2016 . Fuentes-Muñoz Oscar Farnocchia Davide Giorgini Jon D. Park Ryan S. 2025-12-01 Asteroid Mass Estimation by Mutual Perturbations During Close Encounters After Gaia Focused Product Release The Astronomical Journal 170 6 353 10.3847/1538-3881/ae0cc9 0004-6256 free 2025AJ....170..353F 283347135 External links 165 164 Eva 165 166 Rhodope 000165 Category:Discoveries by Christian Peters Category:Named minor planets 000165 000165 000165 18760809